/**
 * THENATHE Terminal — templates.css
 *
 * Styles for template-level areas: the header bar, featured image "hero",
 * page title + content frame, query loop cards (Musings), and the footer.
 */

/* =========================================================
   Header bar
   ========================================================= */

header.wp-block-template-part {
	position: sticky;
	top: 0;
	z-index: 10000;
	background: color-mix(in srgb, var(--tn-bg) 94%, transparent);
	border-bottom: 1px solid var(--tn-border);
	box-shadow: 0 10px 35px rgba(0, 0, 0, 0.28);
	backdrop-filter: blur(14px) saturate(125%);
	-webkit-backdrop-filter: blur(14px) saturate(125%);
}

body.admin-bar header.wp-block-template-part {
	top: var(--wp-admin--admin-bar--height, 32px);
}

/* Phosphor line under the header. */
header.wp-block-template-part::after {
	content: "";
	position: absolute;
	right: 0;
	bottom: -1px;
	left: 0;
	height: 1px;
	background: linear-gradient(90deg, var(--tn-green), transparent 50%, var(--tn-green));
	opacity: 0.62;
}

header .wp-block-site-logo img {
	border: 1px solid var(--tn-border-strong);
	box-shadow: 5px 5px 0 var(--tn-green-soft);
	filter: saturate(0.9) contrast(1.04);
}

header .wp-block-site-title {
	font-size: clamp(1.05rem, 0.9rem + 0.45vw, 1.45rem);
	font-weight: 650;
	letter-spacing: -0.045em;
}

:is(header, footer) .wp-block-site-title a {
	color: var(--tn-text);
	text-decoration: none;
}

:is(header, footer) .wp-block-site-title a:hover {
	color: var(--tn-hover);
	text-decoration: none;
}

header .wp-block-site-tagline {
	font-size: clamp(0.75rem, 0.69rem + 0.18vw, 0.9rem);
	line-height: 1.4;
}

header .wp-block-site-tagline::before {
	content: ">\00a0";
	color: var(--tn-green);
	opacity: 0.8;
}

/* =========================================================
   Featured image hero
   ========================================================= */

.wp-block-post-featured-image {
	position: relative;
	isolation: isolate;
	overflow: hidden;
	background: var(--tn-panel);
	border-top: 1px solid var(--tn-green-line);
	border-bottom: 1px solid var(--tn-border-strong);
}

.wp-block-post-featured-image::after {
	content: "";
	position: absolute;
	inset: 0;
	z-index: 2;
	pointer-events: none;
	background-image:
		linear-gradient(color-mix(in srgb, var(--tn-green) 8%, transparent) 1px, transparent 1px),
		linear-gradient(90deg, color-mix(in srgb, var(--tn-green) 8%, transparent) 1px, transparent 1px),
		linear-gradient(180deg, transparent 58%, rgba(2, 5, 3, 0.4));
	background-size: 48px 48px, 48px 48px, auto;
	mix-blend-mode: soft-light;
}

.wp-block-post-featured-image img {
	display: block;
	filter: saturate(0.84) contrast(1.06) brightness(0.92);
	transition: filter 250ms ease, transform 600ms ease;
}

.wp-block-post-featured-image:hover img {
	filter: saturate(0.96) contrast(1.04) brightness(0.98);
	transform: scale(1.008);
}

/* =========================================================
   Page title + content frame
   (frame colors/borders/padding: theme.json → Post Title, Post Content)
   ========================================================= */

main.wp-block-group {
	padding-bottom: clamp(2.5rem, 6vw, 6rem);
}

/* Padding and borders stay inside the wide width, so title and frame line up. */
.wp-block-post-title,
.wp-block-post-content {
	box-sizing: border-box;
}

/* No featured image? Give the title room instead of butting into the header. */
main > .wp-block-group:first-child > .wp-block-post-title:first-child,
main > .wp-block-post-title:first-child {
	margin-top: var(--wp--preset--spacing--60);
}

@keyframes tn-cursor-blink {
	50% {
		opacity: 0;
	}
}

/* Blinking cursor after a single page/post title. */
h1.wp-block-post-title::after {
	content: "";
	display: inline-block;
	width: 0.5em;
	height: 0.95em;
	margin-left: 0.25em;
	vertical-align: -0.1em;
	background: var(--tn-green);
	box-shadow: 0 0 12px var(--tn-glow);
	animation: tn-cursor-blink 1.1s steps(1, end) infinite;
}

/* Section headings inside content: rule with a phosphor lead-in. */
.wp-block-post-content :where(h2, h3, h4, h5, h6).wp-block-heading {
	position: relative;
	padding-bottom: 0.5rem;
	border-bottom: 1px solid var(--tn-border);
}

.wp-block-post-content :where(h2, h3, h4, h5, h6).wp-block-heading::after {
	content: "";
	position: absolute;
	bottom: -1px;
	left: 0;
	width: min(9rem, 30%);
	height: 1px;
	background: linear-gradient(90deg, var(--tn-green), transparent);
}

.wp-block-post-content :where(h2, h3, h4).wp-block-heading {
	margin-top: 2.2em;
}

.wp-block-post-content > :first-child {
	margin-top: 0;
}

/* =========================================================
   Query loop cards (Musings / blog / archives)
   ========================================================= */

.wp-block-query .wp-block-post-template {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: clamp(1rem, 2vw, 1.5rem);
	padding: 0;
	counter-reset: tn-entry;
}

.wp-block-query .wp-block-post-template.is-layout-grid {
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
}

.wp-block-query .wp-block-post {
	position: relative;
	box-sizing: border-box;
	margin: 0 !important;
	padding: clamp(1rem, 2.5vw, 1.75rem);
	background: var(--wp--preset--gradient--terminal-panel);
	border: 1px solid var(--tn-border);
	border-left: 3px solid var(--tn-border-strong);
	box-shadow: var(--tn-shadow-small);
	counter-increment: tn-entry;
	transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

/* "ENTRY 01 // ARCHIVE" */
.wp-block-query .wp-block-post::before {
	content: "ENTRY\00a0" counter(tn-entry, decimal-leading-zero) "\00a0//\00a0 ARCHIVE";
	display: block;
	margin-bottom: 0.8rem;
	padding-bottom: 0.5rem;
	color: var(--tn-muted);
	border-bottom: 1px solid var(--tn-border);
	font-size: 0.67rem;
	font-weight: 600;
	letter-spacing: var(--tn-label-tracking);
}

.wp-block-query .wp-block-post:hover {
	border-left-color: var(--tn-hover);
	box-shadow: var(--tn-shadow-small), -6px 0 24px -12px var(--tn-glow);
	transform: translateY(-2px);
}

.wp-block-query .wp-block-post:hover::before {
	color: var(--tn-green);
}

/* Cards already have a frame, so drop the single-page title frame here. */
.wp-block-query .wp-block-post-title {
	margin: 0 0 0.75rem;
	padding: 0;
	background: none;
	border: 0;
	box-shadow: none;
}

.wp-block-query .wp-block-post-title a {
	color: var(--tn-text);
	text-decoration: none;
}

.wp-block-query .wp-block-post-title a:hover {
	color: var(--tn-hover);
	text-decoration: underline;
}

/* A separator at the very end of a card just adds empty space. */
.wp-block-query .wp-block-post .wp-block-separator:last-child {
	display: none;
}

.wp-block-query .wp-block-post > .wp-block-group:last-child > :last-child {
	margin-bottom: 0;
}

.wp-block-post-author-name a,
.wp-block-post-date a {
	text-decoration: none;
}

.wp-block-post-excerpt__more-link,
.wp-block-read-more {
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
	margin-top: 0.8rem;
	font-size: 0.86rem;
	font-weight: 650;
}

.wp-block-read-more::before,
.wp-block-post-excerpt__more-link::before {
	content: ">";
}

/* Pagination and previous/next links as small terminal keys. */
.wp-block-query-pagination,
.wp-block-post-navigation-link {
	font-size: 0.86rem;
}

.wp-block-query-pagination :is(a, .current),
.wp-block-post-navigation-link a {
	display: inline-block;
	padding: 0.45rem 0.7rem;
	background: var(--tn-panel);
	border: 1px solid var(--tn-border);
	text-decoration: none !important;
}

.wp-block-query-pagination .current {
	color: var(--tn-bg-deep);
	background: var(--tn-green);
	border-color: var(--tn-green);
}

.wp-block-query-pagination a:hover,
.wp-block-post-navigation-link a:hover {
	color: var(--tn-hover);
	border-color: var(--tn-hover);
}

/* =========================================================
   Footer
   ========================================================= */

footer.wp-block-template-part {
	position: relative;
	margin-top: 0;
	background: linear-gradient(180deg, color-mix(in srgb, var(--tn-panel) 98%, transparent), var(--tn-bg-deep));
	border-top: 1px solid var(--tn-border-strong);
	box-shadow: 0 -18px 50px rgba(0, 0, 0, 0.26);
}

/* "// END OF TRANSMISSION ........ [EOF]" */
footer.wp-block-template-part::before {
	content: "//\00a0 END\00a0OF\00a0TRANSMISSION";
	display: block;
	box-sizing: border-box;
	width: min(var(--wp--style--global--wide-size), calc(100% - 2 * var(--wp--style--root--padding-left)));
	margin-inline: auto;
	padding: 0.7rem 0;
	color: var(--tn-green);
	border-bottom: 1px solid var(--tn-border);
	font-size: 0.68rem;
	font-weight: 600;
	letter-spacing: var(--tn-label-tracking);
	opacity: 0.8;
}

footer.wp-block-template-part::after {
	content: "[EOF]";
	position: absolute;
	top: 0.7rem;
	right: max(var(--wp--style--root--padding-right), calc((100% - var(--wp--style--global--wide-size)) / 2));
	color: var(--tn-muted);
	font-size: 0.68rem;
	font-weight: 600;
	letter-spacing: var(--tn-label-tracking);
	line-height: 1.72;
}

footer .wp-block-site-logo img {
	border: 1px solid var(--tn-border);
	filter: saturate(0.78);
}

footer :where(.wp-block-site-tagline, p) {
	color: var(--tn-muted);
}

footer .wp-block-navigation a {
	font-size: 0.85rem;
	text-decoration: none;
}

footer .wp-block-navigation a::before {
	content: ">\00a0";
	color: var(--tn-green);
	opacity: 0;
	transition: opacity 150ms ease;
}

footer .wp-block-navigation a:hover::before,
footer .wp-block-navigation a:focus-visible::before {
	opacity: 1;
}

/* =========================================================
   Responsive
   ========================================================= */

@media (max-width: 781px) {
	body.admin-bar header.wp-block-template-part {
		top: 46px;
	}

	.wp-block-post-title {
		border-top-width: 2px !important;
	}

	.wp-block-post-content {
		border-left-color: var(--tn-border) !important;
	}

	.wp-block-post-featured-image img {
		min-height: 18rem;
		object-fit: cover;
	}
}

@media (max-width: 599px) {
	/* backdrop-filter would trap the full-screen mobile menu inside the header
	   (it creates a containing block for position: fixed), so drop it here. */
	header.wp-block-template-part,
	body.admin-bar header.wp-block-template-part {
		position: relative;
		top: auto;
		background: var(--tn-bg);
		backdrop-filter: none;
		-webkit-backdrop-filter: none;
	}

	.wp-block-post-title,
	.wp-block-post-content {
		box-shadow: none !important;
	}

	.wp-block-post-content {
		padding-inline: 1rem !important;
	}

	.wp-block-query .wp-block-post {
		border-left-width: 2px;
		box-shadow: none;
	}
}

@media (prefers-reduced-motion: reduce) {
	h1.wp-block-post-title::after {
		animation: none;
	}

	.wp-block-post-featured-image:hover img,
	.wp-block-query .wp-block-post:hover {
		transform: none;
	}
}

/* =========================================================
   Post front matter pattern (patterns/post-front-matter.php)
   ---
   author: …
   date:   …
   categories:
   - term
   ---
   ========================================================= */

.tn-front-matter {
	margin-block: 1rem 1.5rem;
	font-size: var(--wp--preset--font-size--small);
}

.tn-front-matter > * + * {
	margin-top: 0.35rem !important;
}

.tn-front-matter::before,
.tn-front-matter::after {
	content: "---";
	display: block;
	color: var(--tn-syntax);
	letter-spacing: 0.2em;
	line-height: 1.6;
}

.tn-front-matter::before {
	margin-bottom: 0.5rem;
}

.tn-front-matter::after {
	margin-top: 0.5rem;
}

.tn-front-matter :is(p, .wp-block-post-author-name, .wp-block-post-date) {
	margin: 0;
	line-height: 1.6;
}

.tn-front-matter .tn-key,
.tn-front-matter .wp-block-post-terms__prefix {
	color: var(--tn-muted);
}

.tn-front-matter .wp-block-post-date {
	color: var(--tn-danger);
}